Adjustment for gas burners



Aug. 19 1969 w. N. ALESHIN ADJUSTMENT FOR GAS BURNERS F ile d June 8 1967 INVENTOR. WILL/AM M AQESH/N.

ITTORNE Y.

United States Patent 3,462,084 ADJUSTMENT FOR GAS BURNERS William N.Aleshin, 880 Main St., South Windsor, Conn. 06074 Filed June 8, 1967,Ser. No. 644,646 Int. Cl. Bb 7/06, 7/12 US. Cl. 239-431 1 Claim ABSTRACTOF THE DISCLOSURE An air adjustment for gas burners, particularly forthe well known type of burners using propane gas and including a burnerunit that is attachable to a gas cylinder; said burner unit comprising aburner nozzle and a gas valve for controlling the supply of gas to thenozzle. Said nozzle has a finely adjustable air valve to control theamount of air supplied to a flame burning on the nozzle.

Background of the invention Known burner units for gas cylinders havemeans for admitting air to the nozzle but such means are not adjustableand it is highly desirable that finely adjustable means be provided tofully control the amount of air admitted in order to control the shapeand intensity of the flame at the burner tip.

Summary of the invention In accordance with the present invention, aburner unit is provided with a finely adjustable air valve forregulating and controlling the supply of air to the burner nozzle.

The general object of the invention is to provide air adjustment meansby which fine adjustments can be made for varying and controlling theamount of air supplied to a gas burner.

A further object is to provide an air controlling valve which can beeasily installed on burner units of known type without requiringalterations of said unit.

A still further object is the provision of such an air valve which willcause any gas that may leak from the burner, as it enters the nozzle, tobe mixed with the air supplied to the nozzle and thereby prevent theescape of said leaking gas into the atmosphere.

In accordance with these objects, the air valve is provided with asleeve that is preferably threaded to an element of the known burnerunit and is adapted to surround a portion of the nozzle for adjustablycontrolling the amount of air passing through air ports in said nozzleas clearly described herein and illustrated in the drawing.

Brief description of the drawing FIG. 1 is an elevational side view of agas burner embodying the present invention.

FIG. 2 is an enlarged side view of the nozzle in central verticalsection.

FIG. 3 is a sectional plan view on line 3-3 of FIG. 2.

Description of the invention As shown in the drawings, the gas burnerunit comprises a gas valve 5 having a base 6, that is threaded to thestem 7 of a gas cylinder 8, and a knob 9 for operating said valve. A gastube 10 is connected to the valve '5 by a suitable fitting 11 and a gasnozzle 12 is mounted upon the end of said tube.

The said nozzle includes a body portion 13, that is threaded to a screwthread 14 on the end portion of the tube 10, and an end portion 15 towhich is threaded a burner tip 16 having a chamber 17 with a jet 18 anda series of holes 19 leading therefrom to the end of the burner tip, anda surrounding flame confining sleeve 20. The nozzle body 13 has an axialbore 21 with a threaded portion that engages the screw thread 14adjacent the end of the gas tube 10.

The bore 21 communicates with the burner tip 16 through an axial gaspassage 22 in the nozzle body 13; said body having a cylindrical portion23 with a smooth outer surface and air ports 24 leading from saidsurface into the passage 22. It will be noted that the screw thread 14extends along the end portion of the gas tube 10 for a substantialdistance below the bottom of the nozzle body portion 13.

The gas burner of the construction just described is well known and thepresent invention is particularly directed to the provision of novelmeans which may be readily added to said construction for adjustablycontrolling the amount of air allowed to pass through the ports 24 intothe passage 22 without requiring any alternation of the said knownconstruction.

Said novel means consist of a valve sleeve 25 which closely surroundsthe base portion 23 and is threaded to the portion of the screw thread14, on the gas tube 10, which extends below the bottom of the nozzleportion 23. The sleeve 25 extends upwardly over the round portion 23 ofthe nozzle and is adapted to adjustably cover the ports 24 and therebyfinely control the amount of air allowed to pass through said ports intothe passage 22. A flange 26 is provided on the sleeve 25 to facilitaterotating same with the fingers for making an adjustment.

I claim:

1. In a gas burner having a gas tube with a screw thread on an endportion thereof, a nozzle with a smooth cylindrical end portion threadedto said screw thread and air ports in said cylindrical portion foradmitting air into said nozzle, and an air adjustment including finelyadjustable means for selectively controlling the amount of air admittedthrough said ports, said means compris ing a sleeve having an endportion threaded to said screw thread on the gas tube and spaced fromthe said end of the nozzle, said sleeve extending from said end portionthereof over and surrounding said cylindrical portion of the nozzle andbeing rotatable upon said screw thread for adjustably closing andopening said ports.

References Cited UNITED STATES PATENTS 56,949 8/1866 Jones et a1 239-431838,596 12/1906 Van Zandt 239-431 2,356,048 8/ 1944 Goddeau 239-4313,063,494 11/1962 Meyer 239-431 EVERETT W. KIRBY, Primary Examiner US.Cl. X.R. 239-4175

